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      1 /*
      2  * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
      3  *
      4  * This program is free software; you can redistribute it and/or modify it
      5  * under the terms of version 2 of the GNU General Public License as
      6  * published by the Free Software Foundation.
      7  *
      8  * This program is distributed in the hope that it would be useful, but
      9  * WITHOUT ANY WARRANTY; without even the implied warranty of
     10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
     11  *
     12  * You should have received a copy of the GNU General Public License along
     13  * with this program; if not, write the Free Software Foundation, Inc.,
     14  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
     15  *
     16  */
     17 /**************************************************************************
     18  *
     19  *    TEST IDENTIFIER	: munlock01
     20  *
     21  *    EXECUTED BY	: root / superuser
     22  *
     23  *    TEST TITLE	: Basic test for munlock(2)
     24  *
     25  *    TEST CASE TOTAL	: 4
     26  *
     27  *    AUTHOR		: Nirmala Devi Dhanasekar <nirmala.devi (at) wipro.com>
     28  *
     29  *    SIGNALS
     30  * 	Uses SIGUSR1 to pause before test if option set.
     31  * 	(See the parse_opts(3) man page).
     32  *
     33  *    DESCRIPTION
     34  *	This is a Phase I test for the munlock(2) system call.
     35  *	It is intended to provide a limited exposure of the system call.
     36  *
     37  * 	Setup:
     38  *	  Setup signal handling.
     39  *	  Pause for SIGUSR1 if option specified.
     40  *
     41  * 	Test:
     42  *	 Loop if the proper options are given.
     43  *	  Execute system call
     44  *	  Check return code, if system call failed (return=-1)
     45  *		Log the errno and Issue a FAIL message.
     46  *	  Otherwise, Issue a PASS message.
     47  *
     48  * 	Cleanup:
     49  * 	  Print errno log and/or timing stats if options given
     50  *
     51  * USAGE:  <for command-line>
     52  *  munlock01 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
     53  *		where,		-c n : Run n copies concurrently
     54  *				-e   : Turn on errno logging.
     55  *				-h   : Show this help screen
     56  *				-i n : Execute test n times.
     57  *				-I x : Execute test for x seconds.
     58  *				-p   : Pause for SIGUSR1 before starting
     59  *				-P x : Pause for x seconds between iterations.
     60  *				-t   : Turn on syscall timing.
     61  *
     62  * RESTRICTIONS
     63  * Must be root/superuser to run it.
     64  *****************************************************************************/
     65 
     66 #include <errno.h>
     67 #include <unistd.h>
     68 #include <sys/mman.h>
     69 #include "test.h"
     70 
     71 void setup();
     72 void setup1(int);
     73 void cleanup();
     74 
     75 char *TCID = "munlock01";
     76 int TST_TOTAL = 4;
     77 
     78 void *addr1;
     79 
     80 struct test_case_t {
     81 	void **addr;
     82 	int len;
     83 	void (*setupfunc) ();
     84 } TC[] = {
     85 	{
     86 	&addr1, 1, setup1}, {
     87 	&addr1, 1024, setup1}, {
     88 	&addr1, 1024 * 1024, setup1}, {
     89 	&addr1, 1024 * 1024 * 10, setup1}
     90 };
     91 
     92 int main(int ac, char **av)
     93 {
     94 	int lc, i;
     95 
     96 	tst_parse_opts(ac, av, NULL, NULL);
     97 
     98 	setup();
     99 
    100 	/* check looping state */
    101 	for (lc = 0; TEST_LOOPING(lc); lc++) {
    102 
    103 		tst_count = 0;
    104 
    105 		for (i = 0; i < TST_TOTAL; i++) {
    106 
    107 			if (TC[i].setupfunc != NULL)
    108 				TC[i].setupfunc(i);
    109 
    110 			TEST(munlock(*(TC[i].addr), TC[i].len));
    111 
    112 			/* check return code */
    113 			if (TEST_RETURN == -1) {
    114 				tst_resm(TFAIL | TTERRNO,
    115 					 "mlock(%p, %d) Failed with "
    116 					 "return=%ld", TC[i].addr, TC[i].len,
    117 					 TEST_RETURN);
    118 			} else {
    119 				tst_resm(TPASS, "test %d passed length = %d",
    120 					 i, TC[i].len);
    121 			}
    122 		}
    123 	}
    124 
    125 	/* cleanup and exit */
    126 	cleanup();
    127 
    128 	tst_exit();
    129 }
    130 
    131 void setup1(int i)
    132 {
    133 	addr1 = malloc(TC[i].len);
    134 	if (addr1 == NULL)
    135 		tst_brkm(TFAIL, cleanup, "malloc failed");
    136 	TEST(mlock(*(TC[i].addr), TC[i].len));
    137 
    138 	/* check return code */
    139 	if (TEST_RETURN == -1) {
    140 		tst_brkm(TFAIL | TTERRNO, cleanup,
    141 			 "mlock(%p, %d) Failed with return=%ld", TC[i].addr,
    142 			 TC[i].len, TEST_RETURN);
    143 	}
    144 }
    145 
    146 /* setup() - performs all ONE TIME setup for this test. */
    147 void setup(void)
    148 {
    149 	tst_require_root();
    150 
    151 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    152 
    153 	TEST_PAUSE;
    154 }
    155 
    156 /*
    157  * cleanup() - performs all ONE TIME cleanup for this test at
    158  *		completion or premature exit.
    159  */
    160 void cleanup(void)
    161 {
    162 }
    163